public ICollection <Attendee> GetAllAttendees(UserContext uc)
        {
            List <Attendee> returnAttendees = new List <Attendee>();

            using (GPGFDb gpgfDB = new GPGFDb(uc))
            {
                returnAttendees = gpgfDB.Attendees.ToList();
            }

            return(returnAttendees);
        }
        public void AddRegistration(UserContext userContext, Registration registration)
        {
            using (GPGFDb gpgfDB = new GPGFDb(userContext))
            {
                foreach (Attendee at in registration.Attendees)
                {
                    gpgfDB.Attendees.Add(at);
                }

                gpgfDB.SaveChanges();
            }
        }